颐卦六四
山雷颐 · 周易第 27 卦
六四：颠颐，吉，虎视眈眈，其欲逐逐，无咎。
小象传
象曰：颠颐之吉，上施光也。
爻位
六四是阴爻居四位，阴居阴位为当位；与初爻相应，一阴一阳为有应。
京房纳甲：丙戌（土），六亲为妻财，持世。
此爻变
此爻独动，山雷颐变为火雷噬嗑（第 21 卦）。对应的易林诗：焦氏易林·颐之噬嗑。
理雅各英译（1882）
The fourth SIX, divided, shows one looking downwards for (the power to) nourish. There will be good fortune. Looking with a tiger's downward unwavering glare, and with his desire that impels him to spring after spring, he will fall into no error.
'The good fortune attached to looking downwards for (the power to) nourish,' shows how brilliant will be the diffusion (of that power) from (the subject of the line's) superior position.
本卦
山雷颐（第 27 卦），卦辞：颐：贞吉。观颐，自求口实。
经文依通行本，已与 Chinese Text Project（ctext.org）逐段比对。卦象是研读与自我反思的材料，不作吉凶断语，也不替代医疗、法律、财务等专业意见。